I assume that I can also claim a 30%? discount on my federal taxes.
Unit claims it will use ~$150/year in electricity which is (my estimate) a 50% or more decrease in the power used.
Replacing 15 year old 50 gallon electric version with this one also 50 gallon... AO smith unit has a good reputation when researched.
So.. my guess is I will have an approximately 2 year payoff of the price (I am installing myself).
Merry Christmas/Happy New Year... hope this helps someone else .

Regards
Cpu